KR101993404B1 - Apparatus for lining tube liner for cipp and method for cipp using this same - Google Patents

Abstract

The present invention relates to a constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair, and a water and sewage non-excavation repair method using the same, by mixing steam and compressed air and automatically injecting mixed steam at an appropriate temperature and pressure through a program. By curing the tube liner, it overcomes the limitations of the manual method, reduces the generation of condensate in the tube liner, and enables the construction of a hardened tube and the uniformity of quality by automatic fine adjustment of temperature and pressure. It is done.
The constant temperature constant pressure tube liner lining apparatus for non-excavated water and sewage repair according to the present invention includes a steam supply unit 10 and a compressed air supply unit 20 for supplying steam and compressed air, respectively; A mixing tank 30 which receives steam and compressed air through the steam supply unit and the compressed air supply unit, respectively, separates mixed and condensed water and supplies mixed steam; Steam-side valve means (40) and compressed-air side valve means (50) for adjusting the opening degree of the steam supply part and the compressed air supply part; A mixed steam discharge pipe (60) receiving mixed steam from the mixing tank and supplying the mixed steam to a tube liner installed in water and sewage; A sensor module 70 for sensing a temperature and a pressure inside the mixing tank; A monitor displaying temperature and pressure sensed by the sensor module; An input device for inputting input information including pressure and temperature for curing the tube liner, operation time, and valve adjustment value; A control unit 90 for controlling the steam valve unit and the compressed air valve unit on the basis of the input information input through the input device, and the compressed air through the control of the steam valve unit when the tube liner is inverted. While inverting the furnace tube liner, the mixed steam mixed with steam and compressed air is injected into the tube liner under the control of the steam valve unit and the compressed air valve unit during curing of the tube liner.
Water and sewage non-excavation repair method using the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention, the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair on the site for repair of the maintenance pipe A first step; A second step of connecting the steam supply unit of the constant temperature constant pressure tube liner lining apparatus for the unexcavated water supply and drainage repair to the boiler and the compressed air supply unit to the compressor; A third step of setting an inversion and a curing program; A fourth step of connecting the discharge tube of the constant temperature constant pressure tube liner lining apparatus for repairing the unexcavated water and sewage system to the tube liner, and inverting the tube liner through the injection of compressed air to install on the inner wall of the repair tube; A fifth step of curing the tube liner by injecting mixed steam into the tube liner through the curing program after the fourth step; A sixth step of cooling the tube liner after completion of the fifth step; After completing the sixth step, the tube liner is inverted including the seventh step of finishing the tube liner.
Water and sewage non-excavation repair method using the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention, the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair on the site for repair of the maintenance pipe A first step; A second step of connecting the steam supply unit of the constant temperature constant pressure tube liner lining apparatus for the unexcavated water supply and drainage repair to the boiler and the compressed air supply unit to the compressor; Setting a curing program; A fourth step of installing the tube liner by traction in the repair pipe; A fifth step of curing the tube liner by injecting mixed steam into the tube liner through the curing program after the fourth step; A sixth step of cooling the tube liner after completion of the fifth step; After the completion of the sixth step including the seventh step of closing the tube liner constructs the tube liner towed.

Description

Constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair, and water and sewage non-excavation repair method using same {APPARATUS FOR LINING TUBE LINER FOR CIPP AND METHOD FOR CIPP USING THIS SAME}

The present invention relates to water and sewage non-excavation repair, and more specifically, in the non-excavation repair work, the steam and compressed air are mixed in advance to generate mixed steam having a predetermined temperature and pressure, and the inside of the tube liner is hardened using a software program. The present invention relates to a constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair that constructs a tube liner by automatically adjusting the temperature and pressure of the whole, and a water and sewage non-excavation repair method using the same.

In general, the pipe is a pipe for moving drinking water, rainwater, sewage, sewage, etc., is a structure buried underground mounted.

These pipelines are buried for a long time, cracked due to aging, ground settlement, ground behavior, etc., and the leakage of fluid and infiltration of groundwater occur through the cracks, which requires the repair and replacement of pipelines. Since cost and time are consumed, a method of repairing a pipeline instead of replacing the pipeline by excavation has been mainly developed and used.

There is a cured in place pipe (CIPP) lining method in which a tube liner impregnated with resin is installed in a tube and cured with heat to form a new tube by a conventional pipe repair method.

This method is to insert a tube liner impregnated with a thermosetting resin into the tube to be repaired, and then blows hot steam heat into the tube liner to adhere the tube liner to the inner wall of the tube and simultaneously to harden the tube liner. At this time, there is a reversal type using a traction and compressed air as a method of constructing the tube liner inside the pipe.

Conventional water and sewage non-excavation repair work is a method of directly mixing the boiler and the compressor hose directly to the inverter or curing device, and by adjusting the input amount while opening and closing the manual valve (see Fig. 9). ).

This method uses the entire space inside the tubeliner as a mixer, so that hot steam and cold compressed air move in layers inside the tube liner, making it difficult to mix effectively.

If steam and compressed air are introduced into a completely enclosed space without an outlet, the internal pressure will rise over time and the temperature will rise, but the delivery rate will drop and a vacuum without vapor flow will be created.

Especially in non-excavation repair work, the tube liner has a long pipe shape in the longitudinal direction like the shape of water and sewage pipes, and the slope is so that the hot steam is cooled by the convection rather than mixed with the hot steam heat and cold compressed air. Is separated into the lower layer and moves inside the tubeliner. Because of this, due to incomplete mixing circulating inside the tube liner, even heat supply to the entire area of the tube liner is not achieved, causing severe temperature variations.

In some pull-out units in the total repair method, the method of binding both ends with leaf springs without using a manifold is used to make a direct inlet by supplying a tube liner to supply steam and compressed air. There is also a method of supplying mixed steam to one discharge port by inputting steam or compressed air, respectively. However, such a conventional manual mixing device is mixed by simply flowing two gases without a separate device or a special structural change for mixing is a way to move the other gas to the main gas with a large amount of input.

This manual mixing device interferes with each other when the input pressures of the boiler for supplying steam and the compressor for supplying compressed air are different, so that the steam and the compressed air move in a separated state, so that incomplete mixed steam is generated and the entire area of the tube liner is created. There is a limit that the uniform heat supply cannot be achieved.

As described above, when steam and compressed air are directly injected into the tube liner impregnated to generate a hardening tube or flowed in an incompletely mixed state using a manual mixer, the quality of the mixed steam is deteriorated. The deviation is severe. Due to the temperature variation inside the tubeliner, the thermosetting resin is not evenly contacted with the steam heat, which makes it difficult to uniformly cure it.

For this reason it is very difficult for even experienced hardening equipment operators to maintain temperature and pressure while mixing steam and compressed air inside the tubeliner for uniform curing.

That is, in the conventional non-excavation total repair method, when steam and compressed air are supplied by using various inverters or traction hardening devices, steam and compressed air are independently flown into the tube liner. There is no repair method for generating and supplying steam.

The problems of the non-excavation repair method according to the prior art are summarized as follows.

1. Difficult to match steam boiler primary pressure and compressor discharge pressure and volume when manual mixer or steam and air input are separated. Effective mixing is difficult and temperature is difficult when manual mixer valves are opened manually or mixed inside the tube liner. Difficult to control

2. Condensate is generated when hot steam and cold compressed air meet. Steam and compressed air are mixed in the tube liner, that is, condensate accumulates in the tube liner, which causes delay in curing of the tube liner and requires treatment of the condensate.

3. The operator opens and closes the valve by hand, and the change detection and action time is delayed and the fine adjustment is difficult.

4. The quality of the hardened pipe is not uniform due to the operator's misunderstanding and adjustment error, and it is difficult to install the hard hardened pipe.

5. In the case of non-excavation total repair work, if high saturated steam is supplied directly through a manual mixer or inverter, the mixture is incompletely mixed and high temperature saturated steam directly touches the inside of the tube liner. The hardening of the coating film is damaged and the quality of the hardening tube is not uniform.

Patent document (Registration No. 10-1303487) is a water-free unexcavated pipe hardening method is to reverse the entry of the reinforcing tube impregnated with the thermosetting resin into the pipeline by using water pressure or pneumatic pressure in the pipeline of the old water supply and then reinforce the tube In the hardened unexcavated pipe hardening process, the compressed air and steam are additionally heated inside the heat exchanger to supply dry and dry heat to which the condensate has been removed beforehand, or to automatically control the temperature and pressure of the dry and dry heat. There is a problem that the tube film portion is damaged due to the overheat supply due to no function to cause a hardening.

Patent document (Registered Patent No. 10-1561587) is a method of curing a tube liner using a dry hot air dryer with a water and sewage pipe repair method, and controls the operation and strength of a turbo blower and a heater based on sensing signals from a pressure sensor and a temperature sensor. The software routines in the memory have some similarities, but the method of controlling the temperature by heating only the air, which is a single gas, and controlling the internal pressure at the blower driving speed, generally, by mixing hot steam and compressed air to obtain an appropriate temperature. The software routine is different from the lower feeder and the structure of the mix tank and condensate removal unit is different. In addition, the dry hot air drying method has a problem in that the damage of the tube liner film portion is greater than that of the wet steam, and the curing time is long when the impregnated resin is hardened due to a low temperature transfer effect.

Republic of Korea Patent No. 10-1433182 Republic of Korea Patent No. 10-0545483 Republic of Korea Patent No. 10-1303487 Republic of Korea Patent No. 10-1561587

The present invention is to solve the problems as described above, to overcome the limitations of the manual method by curing the tube liner by mixing steam and compressed air and automatically injecting the mixed steam at a suitable temperature and pressure through the program and tube liner Reduces condensate generation in the interior, and automatically fine-tunes the temperature and pressure for the construction of a hardened tube and the uniformity of quality.In addition, independent use of compressed air and steam allows for unexcavated water and sewage repairs that can be reversed by compressed air. An object of the present invention is to provide a constant temperature constant pressure tube liner lining apparatus and a water and sewage non-excavation repair method using the same.

The constant temperature constant pressure tube liner lining apparatus for non-excavated water and sewage repair according to the present invention includes a steam supply unit and a compressed air supply unit for supplying steam and compressed air, respectively; A mixing tank receiving steam and compressed air through the steam supply unit and the compressed air supply unit, respectively, to separate the mixed and condensed water and to supply the mixed steam; Steam side valve means and compressed air side valve means for adjusting the opening degree of the steam supply part and the compressed air supply part; A mixed vapor discharge tube receiving the mixed vapor from the mixing tank and supplying the mixed steam to a tube liner installed in the water and sewage system; A sensor module for sensing a temperature and a pressure inside the mixing tank; A monitor displaying temperature and pressure sensed by the sensor module; An input device for inputting input information including pressure and temperature for curing the tube liner, operation time, and valve adjustment value; And a control unit for controlling the steam valve unit and the compressed air valve unit based on the input information input through the input device. On the other hand, the tube liner is cured by injecting mixed steam mixed with steam and compressed air through the control of the steam valve unit and the compressed air valve means for curing the tube liner.

Water and sewage non-excavation repair method using the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention, the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair on the site for repair of the maintenance pipe A first step; A second step of connecting the steam supply unit of the constant temperature constant pressure tube liner lining apparatus for the unexcavated water supply and drainage repair to the boiler and the compressed air supply unit to the compressor; A third step of setting an inversion and a curing program; A fourth step of connecting the discharge tube of the constant temperature constant pressure tube liner lining apparatus for repairing the unexcavated water and sewage system to the tube liner, and inverting the tube liner through the injection of compressed air to install on the inner wall of the repair tube; A fifth step of curing the tube liner by injecting mixed steam into the tube liner through the curing program after the fourth step; A sixth step of cooling the tube liner after completion of the fifth step; After the completion of the sixth step, including the seventh step of closing the tube liner, characterized in that the construction of the tube liner inverted.

Water and sewage non-excavation repair method using the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention, the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair on the site for repair of the maintenance pipe A first step; A second step of connecting the steam supply unit of the constant temperature constant pressure tube liner lining apparatus for the unexcavated water supply and drainage repair to the boiler and the compressed air supply unit to the compressor; Setting a curing program; A fourth step of installing the tube liner by traction in the repair pipe; A fifth step of curing the tube liner by injecting mixed steam into the tube liner through the curing program after the fourth step; A sixth step of cooling the tube liner after completion of the fifth step; After the completion of the sixth step including the seventh step of closing the tube liner constructs the tube liner towed.

According to the present invention, according to the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair, and the water and sewage non-excavation repair method using the same, steam and compressed air are separately added to generate a hardened pipe during the non-excavated overall repair work. Unlike the existing method of mixing in the mixing system and the software program using the mixing device and the preset temperature and pressure to create a stable steam supply to the inside of the tube liner by comparing the input to the superheated steam directly through the steam boiler It is possible to prevent rapid curing of the thermosetting resin, to prevent the occurrence of micropores due to thermal damage of the inner film layer of the tube liner, and to reduce the decrease in the roughness coefficient of the inner surface of the curing tube.

In addition, the automatic control method of the hardening work using a software program can cause expansion and contraction of the hardening tube as the steam is injected and blocked in the hardening stage of the non-excavation overall repair work, so that the pressure and temperature changes inside the tube liner are detected in real time. As it adjusts automatically, internal shock elements that may occur during hard pipe production can be alleviated immediately.

In addition, the curing process can be performed at the optimum temperature and pressure conditions, and immediate action can be taken in the pressure and temperature changes inside the tube liner, thereby obtaining a high quality curing tube.

1 is a perspective view of a constant temperature constant pressure tube liner lining apparatus for non-excavated water and sewage repair according to the present invention.
Figure 2 is a conceptual diagram showing the overall configuration of the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention.
Figure 3 is a view showing a steam side valve means applied to the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention.
Figure 4 is a view showing the compressed air side valve means applied to the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention.
Figure 5 is a block diagram of a mixing tank applied to the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention.
6 to 8 are conceptual views showing the injection of mixed steam using a constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention, respectively.
9 is a conceptual view showing the injection of steam and compressed air for maintenance of unexcavated water and sewage according to the prior art.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the specification.

As shown in Fig. 1 and Fig. 2, the constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention, the compression of the steam supply unit 10, the compressor and the like to receive and supply steam from a steam generation source such as a boiler Compressed air supply unit 20 for receiving and supplying compressed air from an air source, mixing tank 30 for supplying by mixing steam and compressed air (in case of inversion, supplying only compressed air for reversing the tube liner), and steam supply unit ( The steam side valve means 40 for adjusting the opening degree of 10), the compressed air side valve means 50 for adjusting the opening degree of the compressed air supply unit 20, and the mixed steam (or compressed air) inside the mixing tank 30 The temperature reduced by the sensor module 70 and the sensor module 70 for detecting the temperature and pressure of the mixed steam discharge pipe 60 to be supplied to the tube liner, the inside of the mixing tank 30 (mixed steam or compressed air) and Indicating pressure Based on the input information input through the touch screen 80 and the touch screen 80 together with input devices for inputting the monitor and tube liner input information (pressure, temperature, operation time, valve adjustment value, etc.) It consists of a control unit 90 for controlling the steam side valve means 40 and the compressed air side valve means (50).

The steam supply unit 10 and the steam valve unit 40 are for supplying steam to the mixing tank 30, and as shown in FIGS. 1 and 3, the steam supply unit 10 receives steam to supply the mixing tank 30. It is composed of a steam supply pipe (11) for supplying the inside), and a steam side bypass pipe (12) for supplying steam into the mixing tank (30) by avoiding the path of the steam supply pipe (11).

That is, when the steam is supplied through the steam supply pipe 11 at any time, and the steam supply pipe 11 cannot be used due to a failure of the steam valve unit 40 configured in the steam supply pipe 11, the steam side bypass pipe. Steam is supplied through (12).

The steam supply pipe 11 is formed so that one side communicates with the inside of the mixing tank 30 and the other side is connected to the boiler and the pipe.

The steam side bypass pipe 12 is a pipe line branched from the steam supply pipe 11 (between the steam side pressure regulator 42 and the steam side automatic valve 43) and connected to the inside of the mixing tank 30, and is a manual valve. 13 and the check valve 14 are configured together.

Steam-side valve means 40 is installed in the steam supply pipe 11, the separator for removing water contained in the steam 41, the steam pressure regulator for controlling the pressure of the steam supplied along the steam supply pipe (11) 42), the steam side automatic valve 43 for adjusting the opening degree of the steam supply pipe 11 through the control of the control unit 90, the steam side manual valve 44 for opening and closing the steam supply pipe 11, to prevent the backflow of steam Steam side check valve 45 for the steam from the far side of the mixing tank (30) manual valve 44-water separator (41)-steam side pressure regulator (42)-steam side automatic valve (43) Steam side check valves 45 are arranged in this order.

The water separator 41 separates and discharges the condensed water from the primary steam generated in the boiler. This is because condensate generated in the pipe by the steam pressure at the first opening after heating of the boiler is discharged to the steam hose because the condensate causes water hammer in the steam pipe, causing damage to the measuring instrument and the pressure reducing valve, respectively.

The separator 41 has a steam trap 46 at the bottom. The steam trap 46 serves to automatically discharge only the condensed water introduced with the primary steam. Normally, steam traps have a built-in filter to filter foreign substances from the steam, but separately install a strainer.

That is, the separator 41 is applied only to the steam side valve means 40 and is not applied to the compressed air side valve means 50.

The steam pressure regulator 42 regulates the pressure of the steam supplied along the steam supply pipe 11, and the steam and the compressed air on the primary side need to be adjusted to the same pressure for smooth mixing because the pressure and flow rate are different from each other. For example, it is a pressure reducing valve.

The steam-side automatic valve 43 is an automatic valve for precisely controlling the opening and closing amount of the valve electronically, and can automatically adjust the opening, closing, control speed, and opening amount, and transmits a result value to the controller 90.

The steam side manual valve 44 controls the opening / closing or opening degree of the steam supply pipe 11 by a manager's operation, and functions as a main valve.

The steam side check valve 45 is installed in the steam side valve means 40 at the last stage, i.e., closest to the mixing tank 30, and at least one of the steam supply unit 10 and the compressed air supply unit 20 causes a pressure drop. If a difference occurs, it prevents the steam inside the mixing tank 30, the compressed air or the mixed steam back to the steam supply pipe (11).

As shown in FIG. 1 and FIG. 4, the compressed air supply part 20 is comprised from the compressed air supply pipe 21 and the compressed air side bypass pipe 22. As shown in FIG.

The compressed air supply pipe 21 is connected to the compressor to supply compressed air into the mixing tank 30.

The compressed air side bypass pipe 22 is for supplying compressed air even when the compressed air side valve means 50 is broken, branched from the compressed air supply pipe 21, and connected to the mixing tank 30. The manual valve 23 and the check valve 24 are configured together.

Compressed air side valve means 50 is a compressed air side pressure regulator 51 for adjusting the pressure of the compressed air supplied along the compressed air supply pipe 21, the compressed air side automatic for adjusting the opening degree of the compressed air supply pipe 21 The valve 52, the compressed air side manual valve 53 which opens and closes the compressed air supply pipe 21, and the compressed air side check valve 54 for preventing the backflow of the compressed air, and the steam side valve means 40 and In comparison, no separator is applied.

Compressed air side manual valve 53, compressed air side pressure regulator 51, compressed air side automatic valve 52, and compressed air side check valve 54 are arranged in order from a distance from the mixing tank 30.

Compressed air side pressure regulator 51 to enable a smooth mixing by reducing the pressure of the compressed air, for example.

The compressed air side automatic valve 52 precisely controls the opening, closing, control speed, and opening amount electronically, and transmits control information to the control unit 90.

The compressed air side manual valve 53 is a main valve which is operated by an administrator to control the opening and closing of the compressed air supply pipe 21.

The compressed air side check valve 54 prevents backflow of steam, compressed air or mixed steam in the mixing tank 30.

As shown in FIG. 5, the mixing tank 30 induces mixing of steam and compressed air through rotation in the tank body 31 and the tank body 31, which provides a space for mixing steam and compressed air. Mixing vanes 32 forming the vortex), the first and second sieves 33 and 34 that are installed at different heights in the tank main body 31 and filter foreign matter contained in the steam and compressed air, and the tank main body 31. It consists of a steam trap 35 for discharging condensate generated in the process of mixing steam and compressed air therein.

The tank body 31 is a type of pressure vessel, which is capable of withstanding the pressure generated when mixing steam and high-pressure compressed air, and is a material for preventing corrosion by condensate, preferably stainless steel or aluminum.

The tank body 31 is divided into two for the assembly and maintenance of the mixing blade 32 and the first and second sieves 33 and 34 (for example, a body having an open top and a cover assembled to the top of the body). Prefabricated is preferred.

The mixing blade 32 is installed in the tank body 31 and is configured to rotate by the flow of steam and compressed air or to rotate by its own driving force, and mixes while rotating the steam and compressed air to generate primary mixed steam. . At this time, the steam and the compressed air is rotated in a vortex form.

The mixing blade 32 is constituted by one or more (shown in two stages in the drawing).

The first filter plate 33 is disposed above the mixing blade 32, and has a plurality of holes, and both mesh structures and perforated structures are possible, and one or two or more sheets are stacked and used.

The first filtering plate 33 serves to induce mixing through filtration of foreign matter and physical collision of steam and compressed air. More specifically, the first filtering plate 33 is mixed through the mixing blades 32 and rises. The steam hits the first filter plate 33 and the flow of vortex is broken. At this time, foreign matter (condensed water, particulate matter, etc.) does not pass through the hole of the first filter plate 33 and falls, and also incompletely mixed steam. And induces precise mixing of the compressed air with the dispersed or crushed compressed air.

Since the porosity of the first filter plate 33 is less than the inner area of the tank body 31, the mixed steam is divided while passing through the first filter plate 33 or struck by the first filter plate 33 and swirled. It is remixed with steam to produce secondary mixed steam.

The first filter plate 33 is made of a material (stainless steel, aluminum, etc.) and a structure capable of bending rigidity and corrosion.

The second filter plate 34 is of the same structure (porous) as the first filter plate 33 and may have a smaller hole size than the first filter plate 33, and is disposed under the mixing blade 32 to be disposed under the tank body. The condensate generated inside 31 passes through the second filter plate 34 and acts as a filter when it accumulates at the lower end of the tank body 31.

The steam trap 35 discharges the condensed water generated in the process of mixing steam and compressed air in the tank body 31 to the outside of the tank body 31.

The discharge pipe 60 is provided with a valve 61 for adjusting the discharge amount in the configuration of a pipe for supplying the mixed vapor mixed in the mixing tank 30 to the tube liner.

In addition, a line static mixer 62 may be configured to mix the mixed steam mixed in the mixing tank 30.

The line static mixer 62 serves as a mixing apparatus used for liquid mixing, and the process of dividing and mixing the number of elements as the fluid moves is repeated. The second mixed steam discharged from the mixing tank 30 flows into the line static mixer 62, is divided by the element, and is divided and rotates in the wing direction inside each element, so that the mixing and mixing are repeated. Mixed steam is produced. When the second mixed steam passes through each element of the line static mixer 62, the second mixed steam does not proceed in a straight direction but is bent left and right and rotates inside the element while colliding.

Since steam and compressed air are different kinds of gases, if they are continuously transported in the same direction of movement, incomplete mixing occurs because the pressure, quantity, temperature, and weight of the steam and compressed air are not mixed, but are separated and transferred to layers. Therefore, in order to mix heterogeneous gases having the same flow direction, the flow quality must be changed by breaking the flow or breaking the flow with collision resistance, and the line static mixer 62 performs this function.

The discharge tube 60 has a nozzle 63 formed at an end thereof, and an injection hose 64 (see FIG. 6) for supplying the mixed steam to the tube liner is connected to the nozzle 63.

The sensor module 70 detects the temperature and pressure of the mixed steam. The sensor module 70 is installed inside the mixing tank 30 and the path of the discharge tube 60 to detect the temperature and pressure of the mixed steam and converts the detected value into digital data. The data is converted and sent to the PLC program of the control unit 90.

If it checks more than 20 times per second and exceeds the allowable change range, the PLC program of the control panel controls each automatic valve as fast as 0.1 seconds or less.

The touch screen 80 includes a keypad for setting the curing program of the tube liner (inverting program of the tube liner), a display for monitoring information such as temperature and pressure, and communication with the control unit 90 (wireless, wireless, etc.). Communication module is equipped.

The control unit 90 controls the steam line valve means 40 and the compressed air side valve means 50 through a PLC program based on the manager's setting value, and manages the tube liner's hardening work. And comparing the present temperature and the present pressure detected by the sensor module 70 with the set temperature and the set pressure on the basis of the set pressure and if they do not match, the automatic valve and the compressed air side valve means of the steam valve unit 40 ( Control the automatic valves of 50) to match them. The present invention allows various controls for injection of mixed steam under the premise that a person skilled in the art can practice.

Constant temperature constant pressure tube liner lining device 100 for non-excavated water and sewage repair according to the present invention is mounted on the vehicle used to be transported to the construction site, Figure 6 and Figure 7 is applied regardless of the shape of the inverter in the inverted type An example is shown, and FIG. 8 shows an example applied to the traction type.

FIG. 9 illustrates an example of injecting steam and compressed air for curing the conventional tube liner 1, and the steam and compressed air are injected into the tube liner 1 through separate injection hoses 2 and 3. .

Water and sewage non-excavation repair method using a constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair according to the present invention is as follows (see Figs. 6 to 8, Figure 6 and 7 is inverted, Figure 8 is traction) .

1. Fixed temperature constant pressure tube liner lining device for non-excavated water and sewage repair.

First, the lining device of the present invention is fixed to the boiler vehicle or unloaded at the work site according to the on-site situation for non-excavation maintenance of the water and sewage aging pipeline.

2. Pipeline connection.

The steam supply pipe 11 of the steam supply unit 10 is connected to a boiler and a hose, and the compressed air supply pipe 21 of the compressed air supply unit 20 is connected to a compressor and a hose.

In case of using the existing inverting device or hardening device, the separately configured compressed air inlet is closed to secure a single supply line for injecting compressed air or mixed steam through the steam inlet.

3. Enter the program.

Electrically connects the touch screen 80 and the control unit 90, and inputs the pressure, temperature, operating time, automatic valve adjustment value, etc. in advance for each step based on the curing program divided into inversion, curing, and cooling stages, and the PLC program. Set to automatically proceed by.

4. Install the tube liner.

Insert the tube liner impregnated with resin into the aging tube (repair tube) and inflate it (towing, reversing).

At this time, when inverting by using air pressure, if the inverting step is selected on the touch screen 80, the automatic valve is adjusted according to the pre-inverted inverting pressure value to control the discharge amount of the compressed air from the mixing tank and supply to the tube liner through the inverting device. do. At this time, when the inversion step is selected on the touch screen 80, the automatic valve for steam is completely closed by the PLC program, and only the compressed air automatic valve is automatically controlled and operated. In other words, when the tube liner is inverted, only compressed air is used without using steam.

In the reverse type apparatus, when the compressed air is introduced, the tube liner 1 expands while the tube liner 1 is inserted in the longitudinal direction along the conservative tube, and in the towing apparatus, the tube liner already inserted is expanded in the transverse direction. do. Therefore, when compressed air of constant pressure is introduced, the tube liner is inverted while expanding at a constant speed. Therefore, in order to control the reversing speed, the compressed air supplied into the tube liner should be adjusted so as not to exceed the set value.

When the insertion of the tube liner 1 is completed, the exhaust valves connected to the end of the tube liner are sequentially opened to fix the discharge rate, and the lining apparatus of the present invention is circulated so that the internal air can be circulated while the pressure inside the tube liner 1 is maintained. The input volume of compressed air should be adjusted automatically.

Thus, when the opening of the exhaust port is completed and the pressure inside the tube liner is stabilized, the mixing tank 30 and the inside of the tube liner 1 are connected to one space, and the input amount of compressed air and steam is automatically adjusted so that the tube liner 1 ) Atmospheric pressure and temperature are maintained at constant temperature and static pressure.

5. Curing.

Once the tube liner 1 has stabilized to a predetermined pressure, it enters the curing step. In order to start the curing step, pressing the curing start button on the touch screen 80, the curing program automatically proceeds according to the pressure and temperature of the pre-set mixed steam for each curing step and the holding time.

In the curing step, the temperature must be sequentially increased while maintaining the pressure inside the tubeliner 1, and when the target value of the predetermined temperature is reached, the automatic valve adjustment is temporarily stopped to maintain the temperature and pressure. However, if it is out of the specified temperature or pressure deviation range, it operates again and adjusts automatically.

The curing step can set different temperature value, pressure and time step by step, so as to secure good curing quality, it sets up the heating time and holding time for each curing step and calculates the holding time when it reaches the target. Maintain temperature, pressure, and time.

The entire curing program includes a curing stage in which mixed steam is input and a cooling stage in which only compressed air is blocked by blocking steam.

When the curing step is completed (determined by time setting, etc.), the cooling step is automatically progressed. At the beginning of the cooling phase, the operator turns off the boiler so that the residual steam generated inside the boiler is sequentially discharged.

At the beginning of the cooling phase, the PLC program shuts off the steam automatic valves sequentially to discharge the remaining steam remaining in the boiler to the tube liner (1). As the amount of steam decreases, the temperature of the mixed steam gradually decreases, causing rapid cooling shock inside the tube liner. Can be prevented.

In the cooling stage, the steam automatic valve should be closed slowly and gradually reduced in temperature to prevent rapid temperature shocks in the tube liner (1). Cooling is performed at high pressure to minimize the shrinkage stress of the thermosetting resin.

The cooling stage also operates to sense the target temperature and automatically adjust the pressure for a set amount of time.

When the pre-designated cooling stage is completed, shrinkage stress may occur when the pressure inside the tube liner (1) is temporarily removed. .

Upon completion of the cooling step, the touch screen 80 displays a completion message and when the driver selects the stop and turns off the power of the compressor, the step-by-step curing program using the lining apparatus according to the present invention is terminated.

When the hardening cooling operation is completed, the tube liner 1 is cut to remove the tube liner 1, and then the on-site hardening tube generating operation for the repair of the old pipe is completed.

That is, the present invention can be used both inverted and traction type, in the inverted method of the present invention-steam and compressed air connection-inverted tube liner with compressed air-curing with mixed steam (setting and curing curing program)-cooling of compressed air It consists of a process, in the traction type of the present invention-tube liner expansion with compressed air-hardening the tube liner pulled by the traction device with a mixed steam (setting and curing curing program)-cooling by compressed air.

10: steam supply part, 11: steam supply pipe
12: steam side bypass pipe, 20: compressed air supply unit
21: compressed air supply pipe, 22: compressed air side bypass pipe
30: mixing tank, 31: tank body
32: mixed wing, 33.34: 1st, 2nd filter board
35 steam trap, 40 steam side valve means
41: water separator, 42: steam pressure regulator
43: automatic valve on the steam side, 44: manual valve on the steam side
45: steam side check valve, 50: compressed air side valve means
51: compressed air side pressure regulator, 52: compressed air side automatic valve
53: compressed air side automatic valve, 54: compressed air side check valve
60: discharge pipe, 61: valve
62: line static mixer, 63: nozzle
64: injection hose, 70: sensor module
80: touch screen, 90: controller

Claims (8)

A steam supply unit and a compressed air supply unit supplying steam and compressed air, respectively;
A mixing tank receiving steam and compressed air through the steam supply unit and the compressed air supply unit, respectively, to separate the mixed and condensed water and to supply the mixed steam;
Steam side valve means and compressed air side valve means for adjusting the opening degree of the steam supply part and the compressed air supply part;
A mixed vapor discharge tube receiving the mixed vapor from the mixing tank and supplying the mixed steam to a tube liner installed in the water and sewage system;
A sensor module for sensing a temperature and a pressure inside the mixing tank;
A monitor displaying temperature and pressure sensed by the sensor module;
An input device for inputting input information including pressure and temperature for curing the tube liner, operation time, and valve adjustment value;
And a control unit for controlling the steam valve unit and the compressed air valve unit based on the input information input through the input device. On the other hand, the tube liner is cured by injecting mixed steam mixed with steam and compressed air into the tube liner by controlling the steam valve unit and the compressed air valve unit during curing of the tube liner.
The mixing tank is connected to the steam supply unit, the compressed air supply unit, and the mixed steam discharge pipe, respectively, the tank main body having a steam trap at the bottom, and installed in the tank body to mix and vortex steam and compressed air through rotation. Mixing blades to induce the inside of the tank body is installed on top of the mixing blades to filter the foreign matter contained in the steam and compressed air, and also to destroy the vortex of the steam and compressed air through the collision of steam and compressed air And a first filter plate for inducing the mixing of compressed air and a second filter plate installed in the lower portion of the mixing blade as the inside of the tank body and filtering foreign substances contained in the steam and foreign substances and removing condensed water. Constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair. delete The method of claim 1, wherein the steam supply unit and the compressed air supply unit, the steam supply pipe and compressed air supply pipe for supplying the steam and compressed air into the mixing tank, the steam supply pipe and the compressed air supply pipe and the pipe is mixed over the mixing tank The check valve for opening and closing and preventing the reverse flow is composed of a steam side bypass pipe and a compressed air side bypass pipe to supply steam and compressed air to the mixing tank separately from the steam supply pipe and the compressed air supply pipe, respectively. Constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair. The steam valve according to claim 3, wherein the steam valve unit is installed in the steam supply pipe and removes water contained in the steam, a steam pressure regulator controlling the pressure of the steam supplied through the steam supply pipe, and the control of the controller. Steam side automatic valve for controlling the opening degree of the steam supply pipe through, the steam side manual valve for opening and closing the steam supply pipe, steam side check valve for preventing backflow of steam, characterized in that the constant temperature for maintenance Hydrostatic tube liner lining device. The method of claim 3, wherein the compressed air side valve means is a compressed air side pressure regulator for adjusting the pressure of the compressed air supplied along the compressed air supply pipe, a compressed air side automatic valve for adjusting the opening degree of the compressed air supply pipe, the compression Compressed air side manual valve for opening and closing the air supply pipe, constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair, characterized in that it comprises a compressed air side check valve for preventing the back flow of compressed air. The constant temperature constant pressure tube liner lining apparatus of claim 1, further comprising a line static mixer installed in a path between the mixing tank and the discharge pipe. A first step of mounting a constant temperature constant pressure tube liner lining device for non-excavation water and sewage repair according to claim 1 on the site for repair of the repair pipe;
A second step of connecting the steam supply unit of the constant temperature constant pressure tube liner lining apparatus for the unexcavated water supply and drainage repair to the boiler and the compressed air supply unit to the compressor;
A third step of setting an inversion and a curing program;
A fourth step of connecting the discharge tube of the constant temperature constant pressure tube liner lining apparatus for repairing the unexcavated water and sewage system to the tube liner, and inverting the tube liner through the injection of compressed air to install on the inner wall of the repair tube;
A fifth step of curing the tube liner by injecting mixed steam into the tube liner through the curing program after the fourth step;
A sixth step of cooling the tube liner after completion of the fifth step;
Water and sewage non-excavation repair using a constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair, including the seventh step of finishing the tube liner after completion of the sixth step Method. A first step of mounting a constant temperature constant pressure tube liner lining device for non-excavation water and sewage repair according to claim 1 on the site for repair of the repair pipe;
A second step of connecting the steam supply unit of the constant temperature constant pressure tube liner lining apparatus for the unexcavated water supply and drainage repair to the boiler and the compressed air supply unit to the compressor;
Setting a curing program;
A fourth step of installing the tube liner by traction in the repair pipe;
A fifth step of curing the tube liner by injecting mixed steam into the tube liner through the curing program after the fourth step;
A sixth step of cooling the tube liner after completion of the fifth step;
Water and sewage non-excavation repair method using a constant temperature constant pressure tube liner lining device for non-excavated water and sewage repair, including the seventh step of finishing the tube liner after completion of the sixth step .

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